乌洛托品

本文就乌洛托品法合成乙基香兰素的各种因素对实验结果的影响进行了详尽的研究，同时应用一种金属氧化物作为反应的催化剂，提高了产率，降低了成本，有利于工业化生产。

The effects were studied on the preparation of ethyl vanillin from urotropin , and a kind of metal oxide was used as catalyst to increase the yields and decrease the cost for the commercial application .

通过实验优化了Fenton试剂法氧化处理含乌洛托品废水的反应条件。

The reaction condition has been optimized through experiments for the oxidation of wastewater containing urotropine by Fenton reagent .

本文采用BET和SEM等方法研究了乌洛托品和尿素两种扩孔剂对汽车尾气净化催化剂载体性能的影响。

BET and SEM techniques were used to study the influence of pore expanding agents ( urotropine and urea ) on properties of the carriers for automotive catalysts .

Br（？）nsted酸性离子液体存在下乌洛托品和甲苯的硝化反应研究

Study on Nitration of Hexamethylenetetramine and Toluene in Presence of Br (?) nsted Acidic Ionic Liquids

BLB、BLY与甲醛、乌洛托品等缓蚀剂具有较好的协同效应。

BLB or BLY composited with formaldehyde or urotropine presents well synergistic effects .

在130℃，以三氯化铁（Fe2O3·6H2O）和乌洛托品（（CH2）6N4）为基本原料在高压反应釜（聚四氟乙烯内衬）中进行反应。

At 130 ℃, the reaction was carried out in a sealed Teflon-lined autoclave employed Urotropine (( CH_2 ) _6N_4 ) and ferric chloride ( Fe_2O_3 ? 6H_2O ) as the reactants .

在盐酸酸洗液中添加乌洛托品、十二烷基硫酸钠、葡萄糖酸钠、OP-10、1,4-丁炔二醇等试剂对除去碳钢氧化膜速度的影响及其缓蚀抑雾效果进行了研究；

The scaling rate and acid fog inhibiting effect for carbon steel in HC1 solution were studied with several additives as urotropine , sodium dodecyl sulfate , sodium glucoheptonate , OP-10 , 1,4-butyne glycol , and so on .

在乌洛托品硝解制备RDX的工艺基础上，采用先氧化后结晶工艺，研究如何控制结晶过程的各种因素来制备符合美军标[MIL-g8C]的细小粒度的RDX产品。

On the basis of the technology of preparing RDX Via HA nitrolysis and especially by oxidizing and then crystallizing , this paper discusses how to control each factor in crystallization to produce the small - grain RDX which conforms to the American Military standard .

结果表明，除乌洛托品外，十二烷基硫酸钠、草酸、OP-10、添加剂、磷酸均有利于酸洗速度的增加，且优化出的最佳配方的氧化皮清除速度约是盐酸酸洗的3倍。

Results demonstrate that sodium dodecyl sulfate , oxalic acid , OP-10 , additive , and phosphoric acid except urotropine are beneficial to the increase of scaling rate . The scaling rate based the optimal formula is about three times as high as that of hydrochloric acid pickling .

使用强碱及乌洛托品降解醋酸纤维丝束的比较研究

Comparative Experiments on Degradation of Acetate Fibrils by Using Different Dissolvents

以植-乌洛托品法取代铬-植鞣法的研究

Study on the Replacement of Cr-Veg Tannage by Veg-Urotropine Tannage

乌洛托品在真空蒸发结晶器里结晶的动力学研究

Crystallization Kinetics of Hexamethylenetetramine in a Vacuum Evaporation Crystallizer

反渗透法浓缩分离乌洛托品废水

The separation of hexamine wastewater for reverse osmosis

一种检测微量乌洛托品的新方法

New Method for Polarographic Determination of Micro Amount of Methenamine Based on Nitrosation Reaction

乌洛托品对碳钢影响的研究

Study on Influence of Urotropine on Carbon Stell

乌洛托品合铬（Ⅲ）的形成研究

Study on the Forming of Chrome-Urotropine Complex

乌洛托品法合成乙基香兰素工艺研究

Synthesis Technique of Ethyl Vanillin by Urotropin

乌洛托品&过硫酸铵改性的淀粉表面施胶剂增强作用研究

The research on the strengthening of starch surface sizing agent modified by hexamine and ammonium persulfate

乌洛托品法是合成已基香兰素的一种重要方法，它操作简单，原料易得，产率较高。

The synthesis of ethyl vanillin from urotropin is a major method with high yields , simple process , and available raw materials .

结果表明，植酸在与尿素、苯甲酸钠、乌洛托品进行复配后，缓蚀率得到提高。

The results showed that after phytic acid combined with sodium molybdate , sodium benzoate and urotropine , the corrosion rate is improved .

同时将确定的最佳成熟期温度与降低乌洛托品与硝酸的投料比进行了综合实验研究。

The experiment of combining the increasing autumn temperature and decreasing the proportion of urotropine and nitric acid is studied at the same time .

首次测定了配体碘化钕、氢碘酸乌洛托品和配合物对枯草芽孢杆菌、大肠杆菌和葡萄球菌的抗菌活性。

And the antibacterial activity against escherichia coli , staphylococcus aureus and bacillus subtilis of neodymium iodide , urotropine hydriodide and the complex was studied .

本文研究了成膜胺在盐酸介质中的缓蚀效率，并和常用的酸洗缓蚀剂&乌洛托品做了对比。

The efficiency of corrosion inhibition of film amine in hydrochloric acid has been investigated , and compared with a well known corrosion inhibitor & hexamethylenetetramine .

以苯胺、乌洛托品为原料，在不同的反应条件下，以不同的配比合成了一系列的苯胺缩聚物。

The aniline and urotropine being taken as raw materials , a series of aniline condensation polymers is synthesized with various ingredient ratio under different reactional conditions .

用极化曲线法研究了钼酸钠与乌洛托品、三乙醇胺、苯并三氮唑、磷酸氢二钠之间的复配效果。

In this article , the synergistic effect of sodium molybdate with urotropinum , triethanolamine , BTA and sodium hydrogen phosphate are evaluated by method of polarization curve .

将聚合物/酚醛冻胶和聚合物/铬冻胶结合在一起，用共聚原料苯酚+乌洛托品代替酚醛树脂，制成了耐温抗盐的冻胶堵剂。

A heat resistant and salt tolerant water controlling agent is prepared by combination of polymer / phenolic resin and polymer / Cr ~ ( 3 + ) gels and by using phenol + urotropine instead of phenolic resin .